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9.2. EXtERNAL PUMP
two types of installation are possible and configured by the parameter P04.
²
P04 = 0 Pump controlled by room air temperature. to be used with a mixing tank.
²
P04 = 1 Pump depends on boiler demand. to be used with a boiler when the boiler pump is inside
the boiler.
the external pump must not be connected directly to the control board. a power relay must be used. neither the
relay nor the pump are provided by airwell.
example of pump controlled by room temperature
the external pump is independent from the compressor on/off. it must run depending on room temperature and
mode.
the temperature difference at which the pump starts and stops is given by parameters P05 and P06.
²
P05 external pump on. room temperature – setpoint. default setting = 0.2°c
²
P06 external pump off. room temperature – setpoint. default setting = 0.6°c
1
3
10
4
1
1
1
1
1
3
1
5
6
7
8
9
1
1
1
1
1
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